looking for a .21 engine for John Finchs Wild thing mono noticed an OPS .21 se for $ 185 us c/w header + pipe then to the MACS which are double the price no header or pipe included any info would be great
ops se is a great motor but it aint no mac. my dad has a ops se and it is a lot faster then any k & b. the mac is just the THE MAC, very few engines will stand up to it. but basicly it comes down to are you racing? against what engines? in what setups? and probly the most important HOW DEEP ARE YOUR POCKETS?