porting and polishing benefits?

[mustanger82]

Porting and polishing make huge benifits stock 351 heads are good to about 43 hp per cyl wothout porting after porting look for a 10 - 20 hp per cyl gain depending on the quality of the port job, the quality of the port job also affects the price, you can spend anywhere from 800$- 1500$+(canadian) based on the level of porting. but a 10 hp per cyl gain is worth 80 hp in the end
which is very noticeable
and worth while
my 2 cents
sean Kisch