8.3L is PULLIN' !!
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Originally Posted by big jimmy
Up the gov springs by using a washer that will allow you to tighten the gov springs a couple clicks but bypass the idle spring. The washer will push down on the inside spring set. When you have clicked down to reach the big outside idle spring you are done and the top end is a higher rpm but it will still behave nice at idle.
Cost? One set of washers.
Big Jimmy
Cost? One set of washers.
Big Jimmy
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Look up Gunracer's post called "Free GSK for the p pump bunch". Gunracer is the one who invented this DIY mod.
On edit to answer your question yes the retaining nut wants to be as close to the original stock position as possible after the washer is fitted. Regular washer thickness is fine.
The washer goes inside the largest spring (idle spring) just under the retaining nut and sits on top of the smaller spring pack .
This extra thickness allows your motor to fuel beyond the stock rpm, but does not affect idle.
So size the washer to fit inside that big spring, cover the others and with a center hole large enough to fit over the stud.
Big Jimmy
On edit to answer your question yes the retaining nut wants to be as close to the original stock position as possible after the washer is fitted. Regular washer thickness is fine.
The washer goes inside the largest spring (idle spring) just under the retaining nut and sits on top of the smaller spring pack .
This extra thickness allows your motor to fuel beyond the stock rpm, but does not affect idle.
So size the washer to fit inside that big spring, cover the others and with a center hole large enough to fit over the stud.
Big Jimmy
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