If there was a difference in the rocker geometry between the PI and carb
cars, how come the TRF catalog (which lists both PI & carb parts) doesn't
show different rockers or pedestals for the two models?
Also, comparing the horsepower of the early and late PI cars is somewhat
misleading due to the change to the DIN rating system of the later cars. The
loss was probably less than it appears.
In comparing the TR250 to the 150 hp TR5, it looks like the different cam,
increased CR, dual exhaust, different dist. advance curve and the PI was used
together to produce the 150 hp.
Berry Price
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