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Old 03-15-2013, 09:50 PM
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Chevy 1500 with 355


I have recently bored my 350 motor 30 over, and got my heads re- built ported and polished. I have after market exhaust and a cold air intake system already set up i also put a mild cam in after getting my motor re worked . Any ideas of what i could do to help boost up some power??? Thanks for any comments open to all suggestions!!

Not interested in nitrious !!

1991 chevy 1500 . tbi fuel injection.

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Old 03-15-2013, 10:18 PM
Brian Martin,Freelance adviser
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Post this question in the engine forum, this forum is for saying WELCOME!

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Old 03-16-2013, 05:10 AM
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More compression, intake, carb/EFI, blower, more cam, etc. What do you have and what are you looking for?
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Old 03-16-2013, 07:10 AM
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Put it in something lighter....and more aerodynamic
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Old 03-16-2013, 09:17 AM
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Well . U arent gonna get much more from that motor.. The heads are the limiting factor. The worst flowing heads GM ever made for a SBC..

My truck is a 1994 TBI 350..

I have absolutely nothing done to my truck except cold air intake and 3:73 gears.. My ext cab truck with gears outruns my friends .030 over 350 in his 92 reg cab truck. Gears really make a huge difference.

U got headers? What intake are u running?

U can get an aftermarket intake that still uses the EGR but its over $250. I would get a good used Edelbrock dual plane carb intake and TBI adapter. Then order a chip to tune out the EGR.

After that, its all going to be in modifying your throttle body. Its the choke..

Go to TBI CHIPS and go to the TBI mods page. There u will find all the info u need to get a lil more HP out of it with modifying the throttle body

My first choice would be gears..
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Old 03-16-2013, 05:36 PM
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If you don't have inspections, replace the catalytic convertor with a test pipe..
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