I have a 94 454 tbi on a 6395 pcm. It had a head gasket problem so while repairing that I put in a larger cam (500 lift), mild ported and blended the stock heads. The question is what intake to use. I am doing this with parts I have in the shop. I have a 93 gm intake with ports opened quite a bit. A 94 gm intake which seems to have some odd holes in the (probably egr) throttle bores and a edelbrock victor air gap with a tbi adapter. My biggest concern is icing. I am installing an external engine oil cooler so could build shroud to route intake through in winter don't really like the idea of hot water through the intake in the summer. So what do you think? Any icing horror stories?