Set up question

[d68barnes]

My 2004 gtp was running a gt block xp cam p ported heads and sc headers 3 in down pipe cat delete 42lb injectors and 3.25 pulley and zzp programmed lost #4 cyl bought new motor low miles it has standard gtp block 1.9 rockers ported heads and sc was planning on running 42 lb injectors and headers think I could still run 3.25 pulley sense it has lower compression and just 1.9 rockers instead of cam

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[d68barnes]

My gtp

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[REDCRAPGP]

Yea run the 3.25 and you'll be meeting chip again.

You need to get a better tune.. Preferably locally by someone who knows what they're doing and you need something to scan for. Don't get pulley happy until you know for sure that your kr free and that your tune is good

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[d68barnes]

Run my 3.4 then ?

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[REDCRAPGP]

That would be a better option but I still won't expect it to last unless your scanning for kr and get a better tune

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[d68barnes]

Take it you don't like zzp tuning I'll see who I can find have old friend but he leaves 3 1/5 hrs away

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[REDCRAPGP]

It's a hit or miss do some research around here on zzp tunes and you'll see what mean. Regardless a in car tune will always be better then a general mail order tune

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[d68barnes]

True that was strong running motor I had before lost cyl should have been happy with 3.4 pulley I probably put 12000 mile on it with 3.25 pulley I guess when I get it back together I'll make road trip

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