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73-87 Chevy _ GMC Trucks => Performance => Topic started by: 454c10 on May 26, 2015, 03:45:57 pm

Title: I want faster
Post by: 454c10 on May 26, 2015, 03:45:57 pm

Ok so my 1986 gmc c10 short bed ran a 15.1 with a stock 454 big block its got headers wieand intake and edelbrock carb i want in the mid 14s with out dumping alot cash i live in higher altitude and its got 2:73 gears posi axle what yall think i could do thats easy????

Title: Re: I want faster
Post by: zieg85 on May 26, 2015, 03:48:25 pm

3.08 or 3.42 gears

Title: Re: I want faster
Post by: fxrsrider on May 26, 2015, 04:25:56 pm

you will get gains both by taking the choke out of the carb and with ram air.

Title: Re: I want faster
Post by: Kren420 on May 26, 2015, 07:04:19 pm

I definitely second swapping out the gears.

Title: Re: I want faster
Post by: FlatBlack77 on May 26, 2015, 10:39:47 pm

rear gears.

what kinda tires you running?

Title: Re: I want faster
Post by: 454c10 on May 27, 2015, 11:06:15 pm

I got 373s from my uncle and i ran slicks for tires

Title: Re: I want faster
Post by: 78BIG-TEN on May 28, 2015, 10:15:23 am

Definitely go with a gear swap.Assuming you have a TH400 behind that BB 3,73 might be
a little steep for highway use,depending on what tire you are using.3.08 with a 28 inch
tire had me around 2600 at 70.If you are running a tall tire like 31.50's,you could go to
a wider lower profile tire simulating a gear change.Next I would do a cam swap,biggest
bang for the buck in my opinion

Title: Re: I want faster
Post by: 454c10 on May 28, 2015, 10:41:18 am

Will do thanks for your time

Title: Re: I want faster
Post by: Stewart G Griffin on June 01, 2015, 08:11:15 pm

Then nitrous.