Re: 7.4 to 8.1, was it worth it?
Can't you run much higher compression and be dedicated propane and gain mileage and power ?
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Tim K.
84 K30 srw Silverado 454 auto
85 C20 350 C6P auto flatbed
94 K1500 lifted shortbed 350 4 bbl NV4500
Last edited by 68post; 01-01-2019 at 02:57 AM.
Reason: add
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