RE: Baja Questions
For the dunes, where it is wide open, you might be disapointed in the 30.5 because it uses a 2mm stroker crank, and stroker cranks eat up some peak RPM. Your stock engine may rev higher for more top speed (but the 30.5 will get there quicker). You might like the stock stroke cranks better for your application.
Ya wanna know what I think would be a great set up for the dunes (if you have the money for a $600.00 long block). A G260 top end with a stock stroke crank, ported to fit on a set of TS reed cases and a good pipe. We hope to do some pipe testing at silver lake this coming weekend on that set up to see which pipe works best. I am shooting for 20,000 RPM, and it should still have some pretty good grunt because of the superior reed valve cases.
Other wise, just stick with a ported G260 engine and a high reving pipe for your sand dune application.
My opinion
Doug
ESP