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exgmguy · 08-17-2002, 04:21 PM

I don't believe much in mail order "guess" chips. I guess they can get you in the ballpark, but every car acts a little differently, so without a dyno and a wideband, it is really just a shot in the dark.

My heads are TFS Twisted Wedge's that have a little porting done to them. The are opened up to a Fel-Pro 1262. Alternative Auto farms out all their head work to my friend who owns Modern Cylinder head in Clinton Twp, Mi. He did them up for me.

But I do have an E-303 cam, so the heads are not being used nearly to their full potential.

08-17-2002, 04:21 PM	#14
exgmguy Registered Member Join Date: Feb 1999 Location: Utica, Michigan Posts: 2,631	I don't believe much in mail order "guess" chips. I guess they can get you in the ballpark, but every car acts a little differently, so without a dyno and a wideband, it is really just a shot in the dark. My heads are TFS Twisted Wedge's that have a little porting done to them. The are opened up to a Fel-Pro 1262. Alternative Auto farms out all their head work to my friend who owns Modern Cylinder head in Clinton Twp, Mi. He did them up for me. But I do have an E-303 cam, so the heads are not being used nearly to their full potential.