hi, just have a few questions. i have a nice 1974 polaris colt 295s/s it runs nice starts on the second pull it runs good but here is my question. i have a parts sled it has a 340 in it i drove it a few times and that thing was fast. i could get it up to around 60-70mph but it would fowl the plug on one cylider till its warm. do you think its worth fixing up to replace the 295? i can nly get the 295 up to about 45-50. and suggestions would be great
thanks
thanks