Quote:
Originally Posted by big10ratrod77
the truck had a tune up good set of wires plugs cap and rotor.
i got a 235/75/r15s for tires and i think thats what was factory stock
i keep my tires at 30 psi with a max of 32. what do you mean about increaseing the timing?
i got 2 1/4 exhaust on the truck with an h pipe
would a hotter coil help?
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That is decent tire size, try upping the air pressure to 35 pounds when cold and then drive the truck. The 30 pounds will work, but it makes it a litte sluggish.
A 2 1/4" to 2 1/2" exhaust is a good size range, the headers would help in the future.
The timing on your engine is probably set at 6 to 10 degrees BTDC. I personally would not take it to far without the use of a timing light that has an "Advance" feature. I set my timing at 35 degrees TOTAL advance and that allows the initial advance timing to settle out around 23 degrees. however, I am running a larger cam and ported heads. If you want to adjust timing start with 12 degrees BTDC and keeping working your way up to a point that the engine will either not shut off without dieseling or the engine experiences "PINGING" which is detonation in the cylinders, while under a load. That is where I would stopp and back my timing off to a good point lower than the detonation point.
A hotter coil will really help ONLY if you are working with higher compression. That is because a spark will die off under the pressure of a compression stroke in a cylinder if the coil is weak. If you have a problem with plugs fouling, then hotter coils and plugs help in that area.