Also agree that if one change is to be made it should be a new prop. I would also look at the ignition system and upgrade to electronic (if it isn't already) and confirm that you are getting all the advance you are supposed to. I would also go through the carb as well.
TANDEM AXLE PACKAGE DEAL
LAST PACKAGE AVAILABLE AT THIS PRICE
5 14X5.5 T06 WHEELS W/GUNMETAL INLAY
5 ST215/75R14 KENDA LOADSTAR KR03 RADIALS
STAINLESS CENTER CAPS, LIFETIME CHROME LUGS
MOUNTED, BALANCED & READY TO INSTALL
PM or email me for tire, wheel or package pricing.
CARBURETOR REBUILDING - $125 + PARTS
LED lights, Chrome & Powder Coated Lugs
2 LED 6" BRAKE LIGHTS DELIVERED $25