Sorry cold not fit all in. Recurve your distributor and rebuild your carb. I don' t know your jet size but the primary is part# 7031968 and the rod is 7031835 secondary rod is the same for your engine with 4sd as the auto car #7047806. Also be sure to have ported advance in all your gears. If headers are out for the question get Ram Air manifolds check with others to see if they work on a GTO since I don't know .change your rear gears to 3.42 :1-4.10:1 this will get you moving quicker from a start. Change your intake form yours to an early 4bble to get rid of the EGR. As said the switch to # 48 head will change compression from the factory 8.0 to the 10.5 of the 350HO in 1969. Hope this helps and it is fun to peee on chev's and watch when you tell them it only a Pontiac 350.
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