I think the only areas left where we would see gains at this point are expensive. Cheapness is out of the equation. He has hit his 90% and the last 10% are going to be have to be fought for.

The areas I think that could still be improved are

- converter efficiency, high dollar transmission rebuild
- spark control, possibly Jacobs set for economy
- electric fuel pump, cooler fuel at the bowl.
- weight reduction
- build specific headers.
- roller cam