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**dagnabbitt** · 08-23-2021, 09:57 PM

I recommend Blueprint over GM Performance. I don't believe you mentioned what trans and rear gears you are running, that info is relevant if you are towing.

08-23-2021, 09:57 PM	#13
dagnabbitt Senior Member Join Date: Dec 2014 Location: Edmonton Alberta Posts: 1,304	Re: 383 vs 350 I recommend Blueprint over GM Performance. I don't believe you mentioned what trans and rear gears you are running, that info is relevant if you are towing. __________________ DAVE Edmonton, Alberta 1959 Apache 1967 K20 1968 C20 1970 C10 1972 GMC 2500 1981 C10