I told you guys last week about the chambers of both heads not being relieved for valve clearance. Well I fixed that issue and started cutting the valve seats for 2.055 valves. Well the first two went great and I dropped my pilot in to do the next seat and my pilot bottomed out. Did a quick check and I was coming up with about .002 oversized intake valve guide. I got out my pin gauges and confirmed it was not only oversized but tapered too. So I started researching part numbers for valve guides and nobody had Speedmaster guides in stock. It sounds like Edelbrock uses the same size so Jegs on Monday said they had two but as of today I’ve gotten nothing which Jegs is good at taking money for stuff they don’t have. (15.00 to ship a 15.00 item) I would have made a bigger order but Jegs now want 200.00 for free shipping. So I called Speedmaster in California and ordered a boatload of valve seats and valve guides. Then I talked to those in charge and sent them pictures of the issues on these two heads. I’m thinking they both bypassed final checkout. I will let you know how Speedmaster replies after their tech team gets together. I didn’t have a great feeling when our conversation was over. Check your heads out guys. All heads and products.