Hi what year of xv750 heads fits to TR1?
Compression with orginal heads in TR1 is 1:8.3 and in xv750 engine it is 1:8.7 is that the reason for more power in 750 heads?
What is the best camshaft to TR1 with XV750 heads (any modification needed)?
How can i get compression more than 1:8.7??? im looking for 1:11 with Shell V-pover 99+ octain it should work right?

S