H-I-J '76 Nova re-fit.

[Nmbr1GMfan]

Originally Posted by FED 387

Todd and Autumn---that might partially explain why the engine did not want to rev under a load as it was "partially retarding the timing" --- might want to replace the cap along with the rotor and in the future put a drop of loctite or silicone on those threads to keep them snug---its possible in all your thrashing and assembly that the "screw" really never was tightened merely snugged from the get go---I'm impressed its all coming together very nicely --- Optimistic for your future results--- might want to RE-DYNO the engine in an as is configuration and then try "some things" on the dyno to see what it likes--- looking for that sweet spot so to speak---Regards FED 387

Totally my fault, I remember tightening it on the dyno but didn't use Loctite, just the little spring washer. Won't make that mistake again. I truly believe now (might be wrong) our old headers would cure the issue of pulling down low, they also might cause a horsepower problem up top though too. Maybe I just need some collector extensions, testing will sort all this out. We'll probably put some new plugs in it and swap headers for Rockingham to see what it does.