I have a similar setup in my '88 C1500 except instead of L31r I went with Summit Racing 162108 TBI aluminum heads 62cc with 2.02 intake and 1.60 exhaust, same TB with 18LB spring, heated O2, headers...
Type: Posts; User: PlayingWithTBI
I have a similar setup in my '88 C1500 except instead of L31r I went with Summit Racing 162108 TBI aluminum heads 62cc with 2.02 intake and 1.60 exhaust, same TB with 18LB spring, heated O2, headers...