How can I achieve even higher horse power gains and what are some general rules to follow?
Generally, retarding ignition timing by 4-8 degrees (1 to 1-1/2 degrees timing retard per 50 HP gain). Forged pistons to increase reliability. In many cases a high performance fuel pump may be necessary. Higher octane (100+) racing fuel may be required as well as spark plugs 1 to 2 heat ranges colder than normal with gaps closed to .025″-.030″. For gains over 275 HP, other significant modifications could be necessary. These modifications allow for even higher HP and include a forged crankshaft, forged connecting rods, a dedicated high output fuel pump used to supply the additional fuel demands of the nitrous system, and a quality racing fuel with high specific gravity and an octane rating of 110 or more.
