Thought I'd send an update on my 428 I've been having issues with. I initially was having problems with smoke and fouled plugs, and lack of power that I thought may have been due to not bending down the head gasket tabs, which prevented the Blue Thunder 4V from sealing properly. I removed the intake, bent down the head gasket tabs, put two helicoils in the back intake manifold holes in the heads, then installed a medium riser dual quad manifold. Well, as I was tightening and lossening intake manifold bolts to try to get all of them started, evidently both helicoils started coming out, and prevented that intake from sealing, and this time, it leaked water into the engine. Well, I took the intake manifold off again, reinstalled the helicoils, and tried a port matched Streetmaster since at this point, I just wanted to get the car back on the road for cruising and car show season. I am happy to report that after a 50 mile drive, there is no smoke, the engine stays cool, and doesn't appear to leak anywhere! Really having fun with the car now! I may try the medium riser again after car show season, but for now, I'm having fun with it. It seems like the carb is heating up when the engine is hot, so I'm thinking about changing carb spacers, which I will ask some questions in my next post. Thanks for all the help guys!
