Hi guy, I just bought an L98 and I need some advice. I want something that burn tires but I want it to be fuel efficient as it's my daily driver( in get 24.7 mpg on highway wit my 305). Something like 21 mpg is fine for me. I was planning to keep the L98 heads and bored the block to get a 355. I was expecting a little porting job on the stock TPI intake. For the valve train I really don't know, I would take some 1.6 rocker but for the cam i have no idea. And I know a guy not to far from my home who makes promm.