Gurnzz Posted May 28, 2008 Report Posted May 28, 2008 i just installed a coolhead with 20cc domes and a +4 adjustable timing plate. i know i will have to run a higher octane but what i wanted to know if i would have to use a bigger jet. i have a 300 in currently. Or any other suggestions that i should do concerning the coolhead and the timing plate would be a great help. thanks Gurnzz Quote
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