Bradz what they mean by twin 45's is twin sidedraught weber carbies - 45 is the size of the throat
I would be very surprised if you will get 130hp at the rear wheels (roughly 170bhp allowing for 30% loss thru driveline) with a single modified downthroat weber, that equates to approx 95 rwkw which is getting very quite high for a pinto. I might add it does depend on what dyno is used as dyno figures can vary greatly from dyno to dyno
A solid pinto with a good cam, big valve head, good exhaust, high compression running twin 45's etc will be in the vancity of 160-180 + bhp, of course there are motors pushing up into the 200+ bhp area but are very heavily worked on twin 48's
probably need to know more about the motor specs
picture of pinto with twin 45's added