1994 Ford Thunderbird Q&A

1994 Ford Thunderbird Question: chevy S-10 sounds good but takes forever to go

we changed from a 2.2 to a 4.3 in a chevy S-10 it sounds good idling but when you go to drive it it takes forever to git up to 50mph or higher what could the problem be? -
Answer 1
What else was changed besides the engine! Had to change the ECM. What else? What year is this S 10 truck? -