We also have had a couple of minor challenges all incorporated in the first 3 we’ve shipped… (about 30 out so far)… the ‘tapered’ pipe plug threads for the water temp and vacuum taps were over-tapped and the fitting ended up being slightly loose in the hole… Bill Mauritz got one of those… Problem fixed after those first 3… The first 18 were cast with a much bigger water runner than necessary-the designer felt that aesthetically all the runners would look ‘bad’ if the same size… Problem was that being so big it was impossible to get a bolt in without some major grinding… ergo my first two days in September relieving the bolt area between the water and intake runners with a die grinder… The machine shop had done a couple of them until they broke thru to water on one which was fixed with JB Weld at the thermal coating company when they discovered it… It was polished ceramic coated outside and thermal barrier inside and Dan Jaynes in Eureka CA got it… He was VERY impressed until the JB Weld blew out spewing coolant all over his new engine compartment… but like a good sport he had it properly welded and is apparently doing fine… The next batch of 75 is due out sometime in the next few weeks with all the issues previously discovered fixed… The NOS Weiands that are now entering the pipeline were available to us a couple of years ago… When Holley bought out Weiand they of course got all the tooling and spare everything out of the warehouse… There were about 100 of the 7503 Weiands unmachined and the tooling, which being wood, was too severely deteriorated… I really resisted the idea of making our own manifold as the expense was going to be huge and the logistics daunting so Gary P and I brainstormed getting the Weiands and machining them to seed banking needed to produce a NEW & IMPROVED manifold for the Poly… It was on my first flight to CA to interview foundries that this came about but in the end Gary and I decided that it would not be integrity to sell an inferior product to then produce a superior product and we passed and had FoundryWorks create our Poly SS-X piece. FoundryWorks had produced the original dyno shoot-out winning Hot Heads 392 Hemi manifold and they took what they learned on that and improved it for our Poly manifold. We’re not trying to brag or oversell our new manifold but having been in this business for 45 years now, other than the 440 big block 2” headers now made for us by TTI, we have never had a product that had such a high level of engineering and manufacturing expertise applied… And we’ve only just begun! Bruce Toth has dug into this project voraciously, originally applying his head porting expertise but in the midst of that he has found suppliers for the highest quality performance valves (including 1.94 and 2.02), brand new cam cores with millennial grinds not 60’s regrinds, 400+ CI stroker kits of quality (word is out on the stuff that’s low quality) etc. Rich Nedbal, our EFI guru, has waited patiently with baited breath for the initiation of our complete computer controlled package that will rival the 2015 engine management parameters moving the Poly solidly into the 21st Century… and what about the simple bolt on of the Poly heads onto any 340-360 options? Quite frankly I had no intentions of getting this involved in this project… I just thought it was a pretty fun idea and Gary P mesmerized me with his enthusiasm… and here we are… Go figure! From: 1962to1965mopars@xxxxxxxxxxxxxxxx [mailto:1962to1965mopars@xxxxxxxxxxxxxxxx] On Behalf Of Roland Osborne Several guys (maybe 5) have them on and are VERY pleased with them… Muscle Motors has built a competition engine for a mud bogger with one but no reports yet if they’ve had a chance to dyno… Bruce Toth and JC Childress both have dyno motor projects in process but Toth is doing JC’s heads so neither have gotten to the dyno yet… The ones that have run are James Morgan-who said it purrs like a kitten until asked and then it ROARS and danurism (which we previously reported) said it was a huge increase ‘seat of the pants’ idle to about 4000 over the Weiand but then flattened out and didn’t seem to pull as hard as the Weiand above that… He obviously needs a bigger carb as this manifold is a killer up to 6500… From: 1962to1965mopars@xxxxxxxxxxxxxxxx [mailto:1962to1965mopars@xxxxxxxxxxxxxxxx] On Behalf Of Bill M So has anyone Dyno'd or driven with one yet? 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