Trying some 596 head porting with 2.02 valves

duster 344 said
View attachment 1716078148

View attachment 1716078147I took the intake from 1.60 to 1.80 still 89 percent but I feel good there. Incase I mess up a little. Still getting used to the die grinder, that my awesome and beautiful girlfriend got me for Christmas. Taking the exhaust from 1.3 to 1.4 pretty much bringing it out to the hardened seats

I am certainly not an expert but from what I have gathered it is better to leave it on the smaller side like your 89 percent, especially for a street build, rather than opening it too much.